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Annual Biennial

Cardamine hirsuta

hairy bittercress

A widespread hardy annual which readily self-seeds in gardens, often appearing when soil is disturbed or in nursery containers. It can produce several generations of plants in one growing season. Small white flowers appear in spring, summer, autumn and in mild winters. These are bourne on thin stems above a basal rosette of lobed pinnate leaves. The flowers are followed by explosive seed pods which distribute extensive quantities of seed. It can be grown as a salad vegetable

Other common names
lamb's cress
chwerw blewog
Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
1 year
Ultimate spread
0–0.1 metre
Growing conditions
Chalk
Loam
Clay
Sand
Moisture
Well–drained, Poorly–drained, Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring White Green
Summer White Green
Autumn White Green
Winter Green
Position
  • Full sun
  • Partial shade
Aspect

East–facing or North–facing or South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Brassicaceae
Native to GB / Ireland
Yes
Foliage
Semi evergreen
Habit
Clump forming
Genus

Cardamine are herbaceous perennials with simple, palmately or pinnately divided leaves and short racemes of 4-petalled white, yellow, pink or purplish flowers in spring or summer

Name status

Correct

How to grow

Cultivation

A native wildflower that frequently appears in open ground, including gardens, and can be grown as an edible addition to salads. Eradicate unwanted plants by hand weeding or hoeing. See bittercress for further information

Propagation

Propagate by seed. Can spread rapidly if allowed to self-seed so remove unwanted plants before they flower

Suggested planting locations and garden types
  • Wildlife gardens
  • Cottage and informal garden
Pruning

No pruning required

Pests

May be susceptible to flea beetles and aphids

Diseases

Generally disease-free

Get involved

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